chapter 5 greenhouse stuff Flashcards
(12 cards)
ZZZthe atmosphere is mainly nitroge 78%, , oxygen, and argon . they do not contribute to greenhouse effect, called dry atmosphere
trace gasses aka greenhouse gasses have the most effect on climate systems
what is the greenhosue effect
graphs to describe that effect if there is a high level of purple high level of absorbtion
greenhouse gasses ppm
h20 vapor 0-4
- most common greenhosue gas
-comes from evaporation
C02
-nitrious oxide: from agragultural sources aka lauging gas, long lived gas takes 115 years for it to come back down
-ozone O3, not strong absorber of infra red, pobsorbs lots of UV, high uv can damage plants so thats why its important for ozone to absorb
he disci=uses the ozone hole and the thinning of it and the montreal protocol treaty led to the protection of teh ozone layer (on later test maybe) goes into cfc/flornanted gas examples that were banned/lonhg lived gaswes
bad ozone: surface ozone thats near the ground, comes from human ommisions 5-40ppb, urban is 200ppb, is in smog, irritates respatory systems and damages plants, short lived gas
good ozone: ozone thats hgigh in the sky
Co2(most important human case gas ON TESTTT)
- long lived gas 10-thousands of years, ppl have measured it for a very long time
difference bwtween ppm and ppb
ppm: if i had a million molicules of air
one min in a 2 year span
ppb: billion particles of air,
one min=2 ye1902 year soan
properties of water vapor
what is condensation
releases heat when condensates
takes in heat when evaporates
latient heat:
heat released through changes in the phasws og h2O
remember solid to vapor is sublimation
vapor liquid to solid releases heat
the graph dor phase change is similat to chemisty thingie
clouds
areas that mahve more cloud nucli=more clouds
cumulus clouds dorm when heat currents rise/ACEND to the sky (aksed a tophat question on this)
inc height of convention curtent= inc chance of rain and cooling of the heat in the cloiud which will cause tit to
keeling curve: in textbook and also on slide but i lieke could nto find it again in the textbook to save my lie
WILL BE ON THE EXAM
gold standard
measurement statted in monoloho hawaii, not imopacted by local emissions but represnentive of our atmosphere as a whole, has a sawtoothnpattern
not directly impacted by human emmisions?
keeling curve with sawtooth
messures atmosphereic co2, meausremnent of UNDISTRUBED and WELLMIXED atmosphere
sawtooth (!) going up= respiration/ inc in co2 when plants are not growing,
decrease in sawtooth= plats are growing /doing ohotosyntesis ASKED A TOPHAT QUESTION ABOUT THIS
maxamum in may\
minimum in seotember
thurday lecture he offshoots to a monoloah cycle and shoes us a black like is the wholeworld is basically increasing in co2
he leaves off briefly touchigng on the photosynthesis formula
played us “music” made from co2. it sounds like farts and vaccuminag and basicially like shit but what happens as the years go on, co2 is increasing
photosyntehesis
take in co2 and water, maked energy, and then releases oygen
respitration cycle is the opposite, remember the reaction (humans animals, bacteria)
adverage lifetiime of co2 is 500 years!!!!!\
how long will it take for our carbon to return to normal after it is released= atmosphereic lifetime
its like debt. lots of carbon over x amoiut of time until it is ero (relation is turnovertime)
carbon cycles interating with us/other ithings:
land atmosphere exchance;
land and respiration balance each other annually
land takes doen 10 gigatons of carbon and hen rereleases 110 gigatons of carbon through the respiration cycle
mentions peramfrost briefly: tons of frozen ice with lots of dead organic matter, logs of carbon 1400 gigatons, will release carbon if melted
oxygen comes from mostly the ocean photosynthesis from algie and stuff but o2 gets burried = net deduction of oxygen
- ocen has multple layers
1. mized layer(thermoclone) aka arm low density water
2. deep ocen, cold high density water aka pycnocline
this idec temp of the ocean is called a thermocline which shoes the transitionnint . lots of the carbon is in theemperture of the ocean lots of the carbon is in the deep ocean.
dissaloutuion: process of carbon disloving into the ocean making carbonic acid
- upwelling: comes from deep ocean, transp
ASKED A TOPHAT QUESTION ABOUT THIS AND WHAT RESEVOR HOLDS THE MOST CARBON AKA THE OCEAN
-downwelling:
surface water from north ocean pools below it causing it more rense, s=ocean top stuff doen to bottom ocean
- biological pimp??? DID NOT GET INFO ON THIS UHM HELP
plants in the ocean are pulling co2 out the atmosphere (eg fish eat somethign and it poops and the poop drops down to the deepocean and then goes back up.
driven by carbon fixation-convet co2 into mroe usable carbon)
atmost=phere ocen exchange:
- ocen becomes more acedic-exchange 60 gtons carbon year- dissalution and biological pump work together to bring
cycles in general:
turnove time is how long it takes to replace all the carbon in the land boiospehre, ocean, permafrost, atmosphere, and deep ocean
- takes about 5 years for atmosphere
land= 20yrs
with rocks= 420,00 years
do i need to know how to caclulate turnover time? if so i dotn really understnat this concept then
look at the textbpook we put a note ther thet is helpful.
basically its how fast it is flowing through
not all tje co2 is absorbed into the atmosphere
hai um im lost
ethane potenancy and hiw nych is being proiduced??
OKAY SO METHANNNEE
increasing methane since industrial time
biggest related to global warming potential:
bigger number one than absorb mroe radation than co2. methane has a higher gwp we know this by the amt of radiation it absorbs
he just goes over the sources and that there are similar trends in methane as in co2 BOOO GO MORE IN DEPTH ASSHOLE :«<\\
METHANE LASTS LONGER IN THE ATMOSPHERE BECAUSE IT ABSORBS MROE RADIATION
carbon 14 mentioned it is usefil for datiung ancient materials because it decays at a predictable rate
